Improvement in rivets



J. E. WODTTEN.

Rivets. v

No. 133,737. Patented Dec. 10, 1872.

UNITED STATES JOHN E. WOOTTEN, OF READING, PENNSYLVANIA..

IMPROVEMENT IN RIVETS.

Specification forming part of Letters Patent No. 133,737, dated December 10, 1872.

To all whom it may concern:

Be it known that I, J OHN E. WOOTTEN, of Reading, in the county of Berks and State of Pennsylvania, have invented an Improvement'in Rivets, of which the following is a specification:

The object of my invention is a metallic rivet the ends of which can be readily dis- .tended while cold Without danger of injuring its efficiency.

This rivet I make of two semi-tubular sections, A A, each having one end, a, bent by swa-ging or otherwise, so that when the two sections are placed together, as shown in Figure 1, they will together form a tubular rivet of which the bent ends are the head. In applyingthe rivet it is passed,while cold, through holes in the object to be securedfor instance, the splicing-bars D of a rail, E; and while a suitable bar G, is held'against the head of the rivet, the tapering end of'a tool, H, is ap .plied to the opposite end, andis struck as many blows with a hammer as may be necessary to bend the end of the two sections against the splice, as indicated by dotted lines in Fig. 2. I A rivet made of ordinary-rolled tubing, treated with a tool, H, in the manner described, would necessarily be so distended as to be in most cases split, and this violent splitting would so disintegrate and shatter the metal that the rivet would be more or less insecure. In order to obviate this diflicnlty I made a rivet of a fiat strip or bar of iron, by

- coiling the latter and welding the coil so that the grain of the iron might have a direction across the rivets, thereby permitting the dis tension and bending of the end with less-danger of splitting the rivet than when the grain had a longitudinal direction; but this rivet, for which Letters Patent were granted to me August 6, 1867, was expensive to manufacture; hence my present rivet, which can be economically made from a rolled or otherwise formed semi-tubular bar, a portion of which .is shown in Fig. 3, the bar being cut into the lengthsrequired, and each length being bent at one end so as to form the head of the rivet; or, if desired, the head may be dispensed with and the riveting of both ends may be accomplished simultaneously. When the tool H is I applied to the projecting end of the rivet the distension can have little or no tendency to split the metal, as each section is at liberty to yield to the tool without interfering with the Witnesses:

J AS. M. LANDIS, J. E. PRICE.

PATENT OFFICE, 

